Improvement in railroad-frogs



D. C. PIERCE.

A Railroad-Frogs. No`.l49,334. ParentedApl-iimam.

UNITED STATES PATENT OFFICE.

DENISON C. PIERCE, OF CLAYTON, NEW YORK.

IMPROVEMENT' IN RAILROAD-FROGS.

Specification forming part of Leiters Patent No. 149,334, dated April 7, 1874; application filed July 2, 1873.

. To all whom it may concern:

Be it known that I, DENIsoN C. PIERCE, of

v Clayton, in the county of Jefferson and State which occur as the wheels pass on and offthe ordinary frogs. The invention consists in providing the frog with short extensions, which lap past the ends of the connecting-rails in such manner as to receive the weight of the car-wheels, and carry them over the joints between the frog and rails.

Figure l is a top-plan view of a frog provided -with my improvement; Fig. 2, a crosssection of the same on the line x, with a carwhcel thereon.

My improvement is applicable to frogs of all styles and forms, whether made in one solid piece or in sections; but in the drawing I have shown a frog with a detachable steel facing, as in the patent granted to me March 12,1872, No. 124,623. In its general construction, the frog is made as usual, consisting of a bedplate provided with a toe or frog, a., wingrails b, and pockets to receive the ends of the connecting-rails C. My improvement consists in providing the ends of the frog with the extensions or projections B, which extend along outside of the connecting-rails C, past the joints between said rails and the ends of the frog. These extensions are made as high` as, or slightly higher than, the rails, and ordinarily of a length of about four inches. At the heel of the point or toe-piece, a single extension -piece answers between the two connecting-rails,for thereason that the car-wheels run on the outside of the rails; but at the opposite end of the frog, where the wheels run on the inside of the connecting-rails, an extension is required for each rail: As the carwheels pass on and 0E the fro g, they bear upon andare supported by the extensions B, which carry them over the joints, taking all the weight from the ends of the frog and rails, and breaking the joints, so as to produce a smooth, level, and continuous track. The arrangement effectually prevents the ends of the frog and rails from bein g battered or worn down, and causes the wheels to pass over the joints with ease and smoothness, entirely obviating the unpleasant and destructive concussion experienced when the wheels pass on and orf frogs of the ordinary construction.

In ordinary frogs, made in one piece, the extensions B will be formed solidly therewith 5 but when theA frogs are made in sections, the extensions will be formed on the rails and toepiece, respectively.

hen the frog is constructed as in my patent above referred to, and as shown in the drawing, I make the steel cap or facing with the extensions in one piece, and make the bedplate or body'otl corresponding form to give support thereto. The extensions, in addition to their main office, also give the connectingrails a strong lateral support, and prevent them from being broken or turned over by the great side strain to which they are subjected.

Having thus described my invention, what 1. A railroad-frog having its ends provided with extensions B, substantially as shown and described, to receive the weight of the carwheels and carry them over the joints, as set forth.

2. The frog A, having its body and its detachable facing both providedwith the extensions B, as shown and described.

DENISON C. PIERCE.

Witnesses J. McKENNEY, I). T. DODGE. 

